package com.example.Springbootexperimenttwo;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ApplicationEventMulticaster;
import org.springframework.context.event.GenericApplicationListener;
import org.springframework.context.event.SimpleApplicationEventMulticaster;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.core.ResolvableType;
import org.springframework.core.env.Environment;
import org.springframework.boot.CommandLineRunner;
import org.springframework.context.annotation.Bean;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.stereotype.Component;




@EnableConfigurationProperties(CustomProperties.class)
public class AutoConfig {
    @Bean
    @ConditionalOnProperty(prefix = "auto",name = "enable", havingValue = "true")
    CommandLineRunner createCustomCommandLineRunner(Environment env){
        return new CustomCommandLineRunner(env);
    }


    @Bean(AbstractApplicationContext.APPLICATION_EVENT_MULTICASTER_BEAN_NAME)
    ApplicationEventMulticaster customApplicationEventMulticaster(ThreadPoolTaskExecutor taskExecutor){
        SimpleApplicationEventMulticaster eventMulticaster = new SimpleApplicationEventMulticaster();
        eventMulticaster.setTaskExecutor(taskExecutor);
        return eventMulticaster;
    }


    static class NoticeEvent extends ApplicationEvent{

        private static final Logger logger = LoggerFactory.getLogger(NoticeEvent.class);

        private final String message;

        public NoticeEvent(String message){
            super(message);
            this.message=message;
            logger.info("添加事件成功！message: {}",message);
        }

        public String getMessage() {return message;}
    }

    @Component
    static  class NoticeListener implements ApplicationListener<NoticeEvent> {

        private static final Logger logger =  LoggerFactory.getLogger(NoticeListener.class);

        @Override
        public void onApplicationEvent(NoticeEvent noticeEvent) {
            logger.info("事件监听器获取到 NoticeEvent，睡眠当前线程 2 秒... ");
            try{
                Thread.sleep(2000);
            }catch (InterruptedException e){
                e.printStackTrace();
            }
            logger.info("NoticeEvent 的 message 属性是 ： {}",noticeEvent.getMessage());
        }
    }


    @Bean
    public ApplicationListener<ApplicationReadyEvent> listener() {
        return new ApplicationListener<ApplicationReadyEvent>() {
            @Override
            public void onApplicationEvent(ApplicationReadyEvent applicationReadyEvent) {
                System.out.println("自定义 ApplicationReadyEvent 事件监听器！");
            }
        };
    }
}
